emetine
C2 (Very Low Frequency)Technical/Specialist
Definition
Meaning
A bitter alkaloid drug extracted from the roots of ipecacuanha plants (Cephaelis ipecacuanha).
Primarily used as an anti-protozoal medication, especially against intestinal amoebiasis, and formerly as an emetic (inducing vomiting). Its use has declined due to significant cardiac toxicity and the availability of safer alternatives.
Linguistics
Semantic Notes
A highly specific term from pharmacology and medicine. Its meaning is almost entirely referential (denoting the specific chemical compound). No figurative or extended meanings are standard. Knowledge is largely confined to medical professionals, pharmacologists, and historians of medicine.
Dialectal Variation
British vs American Usage
Differences
No difference in meaning or usage. Spelling is identical. The drug and its name are international.
Connotations
None beyond its technical/medical context. In both varieties, it carries strong connotations of historical/traditional medicine and significant side effects.
Frequency
Extremely rare in general discourse in both regions. Its frequency is identical and confined to highly technical texts.
Vocabulary
Collocations
Grammar
Valency Patterns
Emetine is used to treat X.The patient received emetine.Emetine causes Y (side effect).X is a derivative of emetine.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “None”
Usage
Context Usage
Business
Not used.
Academic
Used in historical or pharmacological research papers, and in toxicology. Example: 'The study compared the efficacy of emetine with metronidazole in mid-20th century trials.'
Everyday
Virtually never used. An unknown term to the general public.
Technical
Core usage context. Found in medical textbooks, pharmacology references, and case reports on poisoning. Example: 'Emetine inhibits protein synthesis in Entamoeba histolytica.'
Examples
By Part of Speech
verb
British English
- Not applicable. No verb form.
American English
- Not applicable. No verb form.
adverb
British English
- Not applicable. No adverb form.
American English
- Not applicable. No adverb form.
adjective
British English
- The emetine component was isolated.
- Emetine-based therapy is now obsolete.
American English
- Researchers studied the emetine derivative.
- The report detailed emetine poisoning cases.
Examples
By CEFR Level
- This word is not taught at A2 level.
- This word is not typically known at B1 level.
- Doctors sometimes used a drug called emetine in the past.
- Due to its cardiotoxicity, emetine has been largely superseded by safer anti-amoebic agents like metronidazole.
Learning
Memory Aids
Mnemonic
Think: 'E-metine' -> 'Emet-ic' (makes you vomit) + '-ine' (common ending for alkaloids/medicines). It's the emetic alkaloid.
Conceptual Metaphor
Not applicable. The term is a purely technical label.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Do not confuse with "emetin" (a possible transliteration). The standard Russian pharmacological term is "эметин".
Common Mistakes
- Misspelling as 'emettine' or 'emmitine'.
- Pronouncing it as /iːˈmiː.taɪn/ (ee-MEE-tine).
- Using it as a general term for any emetic or anti-amoebic drug.
Practice
Quiz
What is the primary modern association of the word 'emetine'?
FAQ
Frequently Asked Questions
Rarely. Its use is extremely limited due to severe potential side effects on the heart. Safer and more effective drugs are available.
It was primarily used to treat invasive intestinal amoebiasis (amoebic dysentery) caused by Entamoeba histolytica.
It can cause serious cardiotoxicity, including arrhythmias, heart muscle damage, and even heart failure. Its therapeutic dose is close to its toxic dose.
It derives from its source, the emetic (vomit-inducing) ipecacuanha plant. The '-ine' suffix is standard for alkaloids.